Find Duplicate Words in Text
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The "Find Duplicate Words in Text" tool helps you identify words that appear multiple times in your text. You can choose whether to display each duplicate word only once or show all occurrences of duplicated words. The tool also allows you to specify whether the search should be case-sensitive and how the output should be formatted with a custom separator.
Input Text Lines
Text with Result
Tool Options
Duplicate Word Case
Words with different letter cases are not considered duplicates.
Duplicate Word Separator
Output duplicate words separated by this character.
Output Mode
Display each duplicate word just once. For example: "dance dance dance" → "dance"
Display all copies of duplicate words. For example: "dance dance dance" → "dance dance"
What Is a Duplicate Word Finder?
With this online tool, you can extract repeated words from the given text. A repeated word is a word that appears in a text more than once. For example, in the text "brilliant, simply brilliant", the word "brilliant" is a repeated word. The program quickly scans through the text and displays all such words in an easy-to-read list format. There are two modes for finding and displaying repeated words. The first mode detects only the first duplicate copy of each word and prints a list of unique duplicated words to the output. For example, in the text "run, Forrest, run, run!", the output will be just the word "run" as it's the only word that appears in the text multiple times. This mode can be enabled via the "Show Duplicates Once" option. The second mode detects all duplicate copies of a word. In the example with "run, Forrest, run, run!" the first word "run" has two additional copies so the output is "run, run". This mode can be enabled via the "Show All Duplicate Copies" option. You can also choose in the options whether a case-sensitive search should be used. For example, if the option "Case Sensitive Words" is disabled, then for the text "Run, Forrest, run" the program will display one duplicate "run". If this option is active, then the program won't display any duplicates because the words "Run" and "run" have a different case and are considered as two different words.
Find Duplicate Words in Text Examples
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Find Unique Duplicate Words
Show each duplicate word only once in the output.
The quick brown fox jumps over the lazy dog. The fox is quick and the dog is lazy.
the, fox, quick, dog, is, lazy
Find All Duplicate Word Occurrences
Show all occurrences of duplicate words in the output.
Run, Forrest, run, run! You need to run faster!
run, run, run
Case-Sensitive Duplicate Word Finding
Find duplicates considering case sensitivity.
The Rose is red, the rose is beautiful. A red Rose and a white rose make a nice bouquet.
is, red, Rose, rose, a
Case-Insensitive Duplicate Word Finding
Find duplicates ignoring case sensitivity.
The Rose is red, the rose is beautiful. A red Rose and a white rose make a nice bouquet.
the, rose, is, red, a
Custom Separator for Duplicate Words
Output duplicate words with a custom separator.
This is a test. This test is important. Every test is important for testing purposes.
this | test | is | important
All Duplicates with Custom Separator
Show all duplicate occurrences with a custom separator.
One two three one two one four five six five.
one - two - one - five
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